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Physics

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Cameron Hirthe

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Cards in this guide (18)
What is kinetic energy

Kinetic energy is the energy that an object has due to its motion or movement. For instance if a car drives into a wall the energy of its movement is what destroys the wall, That energy is kinetic energy.

Note: Heat is also a form of Kinetic energy because heat is the movement (vibration energy) of atoms or molecules.

The type of energy transferred by a wave in a medium is energy

kinetic

During an inquiry activity You can use one or more of your five senses during an inquiry activity to make

observations

At which temperature would it take the longest for the smell of cologne that someone is wearing to reach you

-30 degree C --APEX:)

Is the term used to describe the study of motion

kinematics

On the decibel scale an increase of decibels means an intensity increase ten times

ten

The pitch of a sound is determined by its and speed together or its frequency alone

The pitch of a sound can be determined by its frequency alone.

For a stationary observer when the source of a sound is moving its

When the source of a sound moves, the frequency noted by the observer will change. This is an example of Doppler's law.

answer: its pitch appears to change.

According to the Impulse-Momentum Theorem what does impulse equal

change in momentum

A 120 V power supply connected to a 30 ohm resistor will produce how many amps of current

A 120V power supply connected to a 30 Ohm resistor will produce 120/30 or 4 amps of current.

The acceleration of gravity means that for each second that passes falling objects move 98 meters

No, that's not correct.

The acceleration of gravity means that for each second that passes, falling objects fall

at a speed that's 9.8 meters per second fasterthan it was one second earlier.

A waves period and its frequency have a what relationship

reciprocal

When a waves moves from a less dense medium to a denser one most of the wave energy is refracted

reflected

In a collision a vehicle that rebounds off the object it trikes experiences less force than if it crumples assuming the time is the same in both situations

false

Whih of the following is not a reason why gravity is important in our lives

It keeps water molecules together in a cup.

What do we call a collection of matter that does not interact with anything else in the universe

An isolated system I think

Which of the following is considered to be a conservative force

Air resistance

The unit used to measure period is the .

Its Seconds

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